From: "dalexj (alex jensen)" <noreply@...>
Date: 2022-12-14T00:10:07+00:00
Subject: [ruby-core:111277] [Ruby master Feature#19232] add NoMatchingPatternError#matchee

Issue #19232 has been reported by dalexj (alex jensen).

----------------------------------------
Feature #19232: add NoMatchingPatternError#matchee
https://bugs.ruby-lang.org/issues/19232

* Author: dalexj (alex jensen)
* Status: Open
* Priority: Normal
----------------------------------------
currently if you pattern match a Hash, you can inspect the #key and #matchee methods from the NoMatchingPatternKeyError
```ruby
begin
  { error: true } => { value: }
rescue NoMatchingPatternKeyError => e
  e.matchee
end
# => {:error=>true}
```

I would find it very helpful for this functionality to be available for the standard `NoMatchingPatternError` without hash key matching
proposed:
```ruby
begin
  [:error, "message"] => [:ok, value]
rescue NoMatchingPatternError => e
  e.matchee
end
# => [:error, "message"]
```



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